DriverDataSource.java

/*
 * RHQ Management Platform
 * Copyright (C) 2005-2013 Red Hat, Inc.
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */

package org.rhq.plugins.database;

import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.Driver;
import java.sql.SQLException;
import java.sql.SQLFeatureNotSupportedException;
import java.util.Properties;
import java.util.logging.Logger;

import javax.sql.DataSource;

/**
 * Works with BoneCP to provide connections, because DriverManager won't load the class correctly through BoneCP
 * (the actual driver class will be loaded by concrete database plugins).
 */
class DriverDataSource implements DataSource {

    private final Properties properties;
    private final Driver driver;
    private final String url;
    private PrintWriter out = new PrintWriter(System.out);

    DriverDataSource(Driver driver, String url, Properties properties) {
        this.driver = driver;
        this.url = url;
        if (properties == null) {
            properties = new Properties();
        }
        this.properties = properties;
    }

    @Override
    public PrintWriter getLogWriter() throws SQLException {
        return out;
    }

    @Override
    public void setLogWriter(PrintWriter out) throws SQLException {
        this.out = out;
    }

    @Override
    public void setLoginTimeout(int seconds) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public int getLoginTimeout() throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public <T> T unwrap(Class<T> iface) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public boolean isWrapperFor(Class<?> iface) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public Connection getConnection() throws SQLException {
        return driver.connect(url, properties);
    }

    @Override
    public Connection getConnection(String username, String password) throws SQLException {
        Properties p = new Properties(properties);
        if (username != null) {
            p.put("user", username);
        }
        if (password != null) {
            p.put("password", password);
        }
        return driver.connect(url, p);
    }

    public Logger getParentLogger() throws SQLFeatureNotSupportedException {
        throw new SQLFeatureNotSupportedException();
    }

}